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Vitamin C + Zinc

product on market Liquid JoySpring Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C and zinc are supported by strong evidence for supporting immune function and reducing cold duration. Elderberry extract shows moderate evidence for similar respiratory support. These ingredients are generally recognized as safe for supplemental use.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Vitamin C + Zinc
Open Full PDF View on NIH DSLD →
Details

Label Data

2 mL
Serving Size
30
Servings
Botanical with Nutrients
Product Type
67%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Vitamin C
50 mg (55% DV)
5 mg (55% DV)
Within RDA (0.5× RDA) 263 studies (A:6, B:134)
Market median: 175.0mg (497 products) 11 studies (A:0, B:1)

Other Ingredients

Extra Virgin Olive Oil Peppermint Oil
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: Take daily or as needed. Shake well. Ages 2+ 2 Droppers 1 dropper = 1 squeeze

Warnings & Precautions

Use only under adult supervision

Warning: Consult your physician before use.

Keep out of reach of children. Not intended for children under 2 years of age.

Do not use if the product appears to be tampered with or if the seal is broken.

Formulation Notes

Gluten free Sugar free

May support immunity

Additional Information

Store at room temperature, away from light.

Metadata

Product Details

UPC / SKU8 50008 88911 0
DSLD Entry Date2025-09-25
Product TypeBotanical with Nutrients
FormLiquid
BrandJoySpring
DSLD ID339553
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.